Pump Installation; Installation Into Pipe Lines - IMPPUMPS NMT Notice De Montage Et D'utilisation

4

PUMP INSTALLATION

4.1

INSTALLATION INTO PIPE LINES

The pump must be installed into pipe lines with its electromotor axis in horizontal position (figure 1) and in one
of the allowed positions (figure 2). Direction arrow on hydraulic housing shows direction of water flow. For pump
to operate with minimal vibrations and noise, it is recommended to install pump in part of the pipe line without
curves for at least 5 D (D = rated pipe diameter) from both side of hydraulic housing.
Pump with suffix F is designed to be built with connecting flanges, using all screws. The connecting flanges are
designed so the pump can be installed in PN6 or PN10 nominal pressure pipelines. Because of the combined
flange design, washers must be used on the pump side, when installing the pump.
Desired head orientation can be achieved by rotating the pump head according to the hydraulic housing
(figure 3). If the pump is already in the system with medium, it is necessary to first close valves before and after
the pump, to rotate the head. Unscrewing four screws which hold the head attached to the hydraulic housing
makes rotating possible. Before fixing head back on, pay special attention to the position of seal between
hydraulic housing and head of the pump.
Ambient around the pump should be dry and illuminated as appropriate and the pump should not be in direct
contact with any objects. Pump seals prevents dust and particles from entering as prescribed by IP class. Make
sure that the distribution box cover is mounted and that the cable glands are tightened and are sealing.
Pump will provide the longest lifetime with ambient at room temperature and moderate medium temperature.
Prolonged operation at elevated temperatures could increase wear. Aging is accelerated by high power and high
temperatures.
Before first run of the pump, the system must be filed with medium and evacuated. Pump must have pressure
on the suction side to operate properly. On the first run it is possible for the pump to make noise until it is
automatically evacuated.
Misconnection or overload could cause pump shutdown or even permanent damage.
•
Pumps might be heavy. Provide yourself help if needed,
•
Pump must not be used in the safety pipelines,
•
Pump should not be used as a holder during welding!
•
When reassembling, care should be taken to ensure seal fit. Failing that, water could
•
cause damage to pumps internal parts,
Drains between pump motor housing and hydraulic housing must be left free (should not
•
be thermally insulated), as it could interfere with cooling and condense drainage
(figure 1
Hot medium can cause burns! The motor can also reach temperatures that could cause
•
injury.
,
)
28